Steam tube-blower.



PATENTEDFEB. 19, w.

:J. C. BENNETT. STEAM TUBE BLOWER. Ar rmoui on I'TLED JAN. 15, 1906.

INVENTOR.

ATTORNEY/S.

Sgmweg Q W in the rearwall of a boiler and is adapted to v To all whom, it may concern:

UNITED, STATES PATENT OFFICE.

. JAMES C. BENNETT, OF DETROIT, MICHIGAN.

STEAM TUBE-BLOWER.

Specification of Letters Patent.

Application filed January 15, 1906. Serial No. 296,008.

Patented Feb. 19, 1907.

Be it known that I, JAMES C. BENNETT, a citizen of the United States'of America, residin at Detroit, in the county of Wayne and gtate of Michi an, have invented certain new and useful lmprovements in Steam Tube-Blowers, of which the following is a' specification, reference being had therein to the accompanying drawings.

This invention relates to steam-blowers for cleaning boiler-fines, and is of that type in which the blower is permanently installed blow the soot from the boiler-tubes to the front and out throughthe chimney, following the natural draft ofthe boiler. Myinvention has special reference to improvements 'in this t e of blowers designed to make it more applicableto meet varying conditions of operation, such as the available 3 space for .operatin' it or the varying sizes of boilers to which i t may be applied, all as tion with 5 more fully hereinafter described in connec: thefiaccompanying drawings, in whi'chj J 5i Figure 1 is a vertical central-section showing my device as ap lied to a marine boilerj Fig. 2 is a detached pers'ective viewfand Fig. 3 is a vertical-section through the steamdischarge nozzle.

A represents the combustion-chamber ofa boiler in rear of the boilertube s, B the boiler-tubes, and O the rear wall of the com-- bustion-chamber,. which in the case of a. marine boiler would be a'part'of the boiler itself. Throu h this rear wall and opposite the center of t e area of the tubes I form a suitable opening D of a size to admit the opening D', thereby rotecting it from the tubular nozzle member of the blower.

The blower head or body is formed in two parts or tubularmembers EE, forminga a slip-joint. connectionbetween' them," the part E forming a sleeve adapted to ermit a considerable endwise movement of t e tubular nozzle member- E ..a steam-tight joint being formed by means of a stufiing-boxG.

The sleeve E is rigidly supported in position by being connected to aQstation'ary steamsupply pipe I, which ma y be branched off from a suitable main .pipe K and has acontrolling-valve J. Upon the movable nozzle member of the blower head is fixedly secured a ratchet-wheel L, provided with an actuating-lever M, sleeved-upon it andcarry ing a suitable pawl N, adapted to engage with the ratchet-wheel, and thereby rotate the nozzle member E.

The lever M is fulcrumed at O to the end of a fulcrum-bar P, which is movably connected to a rigid support, such as the steam pipe K, all in the manner to permit the lever to be actuated in the transverse as well as in the longitudinal direction of the blowerhead for the purpose of projecting and withdrawing the nozzle member toward and from the boiler-tubes as well as rotating it The blower-head carries at its front end a n'ozzle'R, which is suitably shaped so as to discharge the steam against a sectional part of the tube areaj In practice the lever M is adapted to give the operator full control overthe nozzle member of the blower head, permitting it to be withdrawn or projected at will and rotating it at the same time; When it is withdrawn, the discharge of steam from the noz zle is intended to permit the current of steam discharged from the nozzle to cover a sectional area extending from the center out to the outermost tubes, and by rotating it the whole tube area can be successively passed over. By then pushing the nozzle member gradually inward the area which the steamnozzle covers is gradually reducedthat is, it 1 recedes toward the oenter but the forge of the steamwill become more and more concentra'ted, and thus its force is utilized to a greater extent.

My construction enables me to apply my device as a ermanent attachment to the boiler, and w en not inoperation the nozzle member is withdrawn completely within the action of the heat an flame, as without such protection it would last but a shorttime. A further advantage is that the actuating-lever may be placed to be worked either from beneath or from any side or from a platform overhead, as it often would be found necessary in a boiler-room where access tothe rear is often difficult or limited. It is obvious, however, that other means of actuating the nozzle member in the manner described might be readily devised should it appear desirable or necessary.

The nozzle R, I construct as a separate piece or plug, which is merely sli ped into the end of t e tubular nozzle mem er or pipe E and detachabl'y secured therein by a screw,

thus permitting it to be readily renewed or replaced with one of difierent angle.

'What'I claim as my invention is' 1. In a .steamrblower of the charactendescribed, the combination of a sleeve adapted -to be rigidlysufgported in place outside of a boiler, means scribed, the combination of a sleeve adapted to be rigidly supported in place at a distance from the wall of the boiler, means for applyin steam. under pressure to said sleeve, a

tu ular nozzle member slidabl'e and rotatable Within said sleeve, and adapted to be pro- 'ected through an opening in the wall of the oiler, a stufling-box on the end of the: sleeve, and a lever attached to the nozzle member outside the Wall of the boiler to move said member longitudinally and to rotate the same.

scribed, the combination of a sleeve, a tubular nozzlemember slidable in said sleeve and adapted'to be rejected longitudinally into an opening in t 1e wall of a boiler or retracted therefrom, means for supplying steam to said sleeve, a nozzle consisting of 'a plugdetachably secured within the end of. the.' tubular nozzle. .member and, provided with a dischar%e opening and means for actuating the nozz' zme mber.

4. In'a steam-blower of the character d escribed, .theoombination of a sleeve adapted to be supported adj agent to a boiler, a tubular nozzle member movable longitudinally in said sleeve and rotatable therein adapted to be projected into an opening in the wall of the boiler, a lever fulcrumed intermediate its ends and pivotally attached to said nozzle member, and means for supplying steam to saidsleevel v y 5. In a .steam-blowenof the-character'der s'cribed,'thecombination with a fixed steamsup ly pipe, of a sleeve rigidly attached to sai 'pipe at oneaend-to receive steam therefrom and extbndingwith its op 'osite end at I a distance from aaboiler, a tu ul'ar nozzle memberslidable longitudinally in said sleeve and rotatable therein and adaptedto =pro- .ject-into an peningyirfi-the Wall of the boiler,

a stufiing-box on the end of 'the r sleeve,- a

lever fulcrurned intermediate its endsand rotatively and pivotally-attached to? the nozzle member, a ratchet secured upon said noz -1 zle member, and apawl carriedby said lever 3. In a steam-blower of the character deto engage said ratchet.

In testimony whereof I aflix my signature in presence of two Witnesses. 

